Improvement in machine for turning axle-trees



` tutti stent ctjitttt.

WILLIAM H HEFFLEY, OF4 ROCHESTER, INDIANA, ASSIGN-OR TO HIMSELF AND DAVID BARB, OF SAME IJLAGE.

Letters Patent N 106,364, dated AugustltiL IMPROVMENT IN MACHINE FOR TURNING AXLE-TR/El/ES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Be it known that. I, WILLIAM H. HEFFLEY, of Rochester, in the county of Fulton and State of Indiana, have invented a new and Improved Machine for Turning Axle-Trees; and I d'o hereby declare that the following is a fnll, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying-.drawing forming part ot' this specification.

Figure l represents a plan or top view, partly inl chine for turningthe end of axle-trees so that the same will correspond exactly wit-l1 the thimhles or spindles into which they are to he iitted.

The invention consists chiey in providing a mechanism whereby the inner form of the thimble is exactly transferred to the outer side ot' the axle, that is to say, a-set of levers whose ends are pressed against the face of the thimble, controls the cutters which turn the axle.

VThe invention consists also in further details of mechanism, as hereinafter more fully described.

Ain the drawing rerescnts the frame of my improved machine. Upon it are secured two main standards, a and b, one near each end, and, between them, two vertically projecting rings, B and C, as shown.

The rings B C serve as bearings for the ends, c d; of a rot-ary frame, D, that is hung horizontally. in them. Y

The frame D consists of the end pieces c d, and of horizontal rods e c, which connect the saine at their outer parts. It carries a large bevel gear-wheel, E,

which receives motion from a driving-shaft, F, that is hung in the frame A. The shaft F ma-y be revolved by muscular or other suitable power.

Upon the front standard a is secured the thimble G, which is held down by a strap, f, and which may be further supported by an additional standard, g.

The wheel H' may be fitted upon the thimble, it' desired, but is not absolutely required. 'lhe strap f can be vertically adj usted with the thimble by means This invention has for. its object yto construct a maof a wedge'or other device, for the purpose of obtaining the desired position.

The axle-tree H, which is to be turned, is strapped upon the standard b, its inner end heilig centered in a cross-bar, h, of the frame D. lhe strap, t, which holds the axle-tree, can also be vertically adjusted.

The bars e of the frame D serve as rails for a longitudinal frame, I, which slides in the D, but revolves with the same. The frame I receives its-longitudinal motion from one or more screws, J, which. are hung in the frame D, and which carry pini0ns, j| j, at their front ends, that are rotated by means of inner teeth on the stationary front ring B. As the frame D isy revolved the screws will also be rotated, and will feed the frame I in the desired direction, according to the nuts with which 'they may be in gear.

rlhe frame I has a cross-bar, k, which contains two .sets of nuts, m a, (see iig. 5,) that can, alternately, be

brought into use, one`set serving to feed the traine I forward, while the other'causes it to move backward. Ihenuts can be adjusted by means of a small arbor, o, which carries cams, whereby the nuts are set.

The cutters, pp, for turning the end of the axletree, are set into heads, L L, which slide transversely in the frame I., and which are, by pivoted levers rand links s, connected with two bell-crank levers, M M.

The levers M are both, by one pivot t, pivoter! to the front part of the frame I, and reach, with their front ends, into the thimble, while their short arms connect with the links.

ltriction-rollers, fa u, are arranged on the front ends ofthe levers M. Springs V V serve to force the cutters against the axle-tree, and thereby, also, hold the' front ends of the lever Mfapai't. As the fraurcI is revolved with D around the axletreeand gradually fed backward, after the cutters were adjusted over the end of the axle,l the motion ot' the cutters will be controlled by the position ot' the rollers u. The exa act shape of the inner sidey ofthe thimble will, thereby, be transferred to the axle.

When the cutters lhave been fed as far backward as desired, their motion may be reversed by changing the nuts, as aforesaid, in order to smoothen the axle properly.

As the axle is more rounded on top and bottom than at the sides, it will be necessary to apply the eutters with great-er power at the sides. For this purpose I have pivoted to the frame I pressure-levers N,

one above Veach lever r, and affixed an outercam-edge P, to the ring O, as shown,

'Ihe back ends of the levers N rest upon the carn-y edge, and are pressed upon the same by spring w.

'lhe can1edge is formed to correspond about with thecross-sectiou of the axle end. v

When the cutters are `to be applied with greater power, the eam-edge recedes, allowing thev springs w to press the levers N against t-hehends L or levers e'.

Having thus described my invention, What I claim as new, and desire to secure by Leti ters Patent, is---l l. The combination and arrangement of the rotary frame D, longitudinally sliding tranne I, land transversely sliding cutter-heads L, substantially as herein shown and described. v

2. The combination with the frame I, herein described, of the two sets of nuts m n, which can be Vndjnsted to reverse the directionof the feed as specified.

levers M, which revoive in the thimble, combined and arranged substantially ns shown and described.

4. The combinntion of the pressure-levers N with the cutter-heads, and the fixed com P, substantially' Witnesses Y WM. H. MATCUNGLY,

'Wn-12mm (Junren. i f 

